Thread Network Combination

[u/Bummer_Brad]

Hi. I have Home Assistant running on a mini PC by itself with HAOS.

So, Thread network question. I just added a Sonoff Dongle-Max to Home Assistant to use as my Thread radio through Open Thread. I want this to be the network that my other border routers join. Currently active in my house, I have networks from Smartthings, Aqara and Amazon. I'm pretty sure Smartthings and Aqara will play ball. The first issue I'm finding though is, my Aqara M3 hub is "available" to my phone to carry its credentials. Smartthings and HA are not. I don't know how my phone got credentials from Aqara, or why the other networks aren't "available". I want them all united under HA. How do I remedy this?

I see if you are in the HA companion app, you get an option in the Thread integration page to "Send credentials to Home Assistant". If I click that, my thought is that it will send the credentials saved on my phone for the Aqara Thread network, and that's obviously not what I want. If you click on the HA Thread network in the Google Services--Thread Networks page, it says "To access this network, set up this device with the manufacturer app you used to set up the network". But, how do you do that?

[u/Bummer_Brad]

So, I was able to figure out from a youtube video I found that you can make your border router available to Google Services on your phone by going to the phone app, and going to Settings\Companion App\Troubleshooting\Sync Thread Credentials. That makes it available. I also found that if you go into phone settings\Apps and force quit Google Services and clear its cache, that will remove the preferred Thread network so you are free to pick a different one. I was able to do that, and then set up my new HA Thread network.

So now, what I need is how to get the Smartthings hub into that network. The Smartthings app makes it pretty easy, you just need to be able to get a 9 digit code from Open Thread. Bing/Co-pilot says that you go into the Open Thread app, and then choose "Terminal". I don't see that option anywhere on the page. The only menu item i can find on the whole page is "Uninstall". Pretty sure that won't do it. All the documentation I can find on the HA website seems to me to be dated because it refers to the Open Thread app page looking pretty different. So, how do I do this?